The correct answer is: a) Health, Education, and Standard of Living.
The Human Development Index (HDI) is a composite statistic of life expectancy, education, and per capita income indicators, which are used to rank countries into four tiers of human development. A country scores higher if it performs better on these indicators.
The HDI was developed by the United Nations Development Programme (UNDP) in 1990 and is used to measure the progress of countries towards achieving human development goals. The HDI is calculated using the following formula:
HDI = (Life expectancy at birth x 0.25) + (Mean years of schooling x 0.25) + (Gross national income per capita (PPP) x 0.25)
The HDI is a valuable tool for measuring the progress of countries towards achieving human development goals. It is also a useful tool for comparing the performance of different countries on a range of human development indicators.
The three primary dimensions used to calculate the HDI are:
- Health: This dimension measures the average life expectancy at birth in a country. A higher life expectancy indicates that people in a country are living longer and healthier lives.
- Education: This dimension measures the mean years of schooling and expected years of schooling in a country. A higher mean years of schooling indicates that people in a country are more educated. A higher expected years of schooling indicates that people in a country are expected to receive more education in the future.
- Standard of living: This dimension measures the gross national income per capita (PPP) in a country. A higher gross national income per capita indicates that people in a country have a higher standard of living.
The HDI is a valuable tool for measuring the progress of countries towards achieving human development goals. It is also a useful tool for comparing the performance of different countries on a range of human development indicators.